TY - JOUR
T1 - The language phenotype of children and adolescents with noonan syndrome
AU - Pierpont, Elizabeth I.
AU - Weismer, Susan Ellis
AU - Roberts, Amy E.
AU - Tworog-Dube, Erica
AU - Pierpont, Mary Ella
AU - Mendelsohn, Nancy J.
AU - Seidenberg, Mark S.
PY - 2010/8/1
Y1 - 2010/8/1
N2 - Purpose: This study presents an analysis of language skills in individuals with Noonan syndrome (NS), an autosomal dominant genetic disorder. We investigated whether the language impairments affecting some individuals arise from deficits specifically within the linguistic system or whether they are associated with cognitive, perceptual, and motor factors. Comparisons of language abilities among the different NS genotypes were also conducted. Method: Sixty-six children and adolescents withNS were evaluated using standardized speech, language, and literacy assessments. Additional cognitive, perceptual, and motor tasks were administered to examine the relation of these factors to language development. Genotype was noted for those who underwent genetic testing. Results: Language impairments were more frequent in NS than in the general population and were associated with higher risk for reading and spelling difficulties. Language was significantly correlated with nonverbal cognition, hearing ability, articulation, motor dexterity, and phonological memory. Genotype analyses suggest that the higher performance of SOS1-positive than PTPN11-positive individuals on language tasks was largely mediated by differences in cognitive ability. Conclusions: Our results indicate that variation in language skill in NS is closely related to cognitive, perceptual, and motor factors. It does not appear that specific aspects of language are selectively affected in this syndrome.
AB - Purpose: This study presents an analysis of language skills in individuals with Noonan syndrome (NS), an autosomal dominant genetic disorder. We investigated whether the language impairments affecting some individuals arise from deficits specifically within the linguistic system or whether they are associated with cognitive, perceptual, and motor factors. Comparisons of language abilities among the different NS genotypes were also conducted. Method: Sixty-six children and adolescents withNS were evaluated using standardized speech, language, and literacy assessments. Additional cognitive, perceptual, and motor tasks were administered to examine the relation of these factors to language development. Genotype was noted for those who underwent genetic testing. Results: Language impairments were more frequent in NS than in the general population and were associated with higher risk for reading and spelling difficulties. Language was significantly correlated with nonverbal cognition, hearing ability, articulation, motor dexterity, and phonological memory. Genotype analyses suggest that the higher performance of SOS1-positive than PTPN11-positive individuals on language tasks was largely mediated by differences in cognitive ability. Conclusions: Our results indicate that variation in language skill in NS is closely related to cognitive, perceptual, and motor factors. It does not appear that specific aspects of language are selectively affected in this syndrome.
KW - Articulation
KW - Developmental disorders
KW - Language
KW - Literacy
KW - Noonan syndrome
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U2 - 10.1044/1092-4388(2009/09-0046)
DO - 10.1044/1092-4388(2009/09-0046)
M3 - Article
C2 - 20543023
AN - SCOPUS:77955375878
SN - 1092-4388
VL - 53
SP - 917
EP - 932
JO - Journal of Speech, Language, and Hearing Research
JF - Journal of Speech, Language, and Hearing Research
IS - 4
ER -